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Aktuelle Fachpublikationen

Generating high-purity cardiac and endothelial derivatives from patterned mesoderm using human pluripotent stem cells

Nature Protocols 12, 15 (2017). doi:10.1038/nprot.2016.153 Authors: Nathan J Palpant, Lil Pabon, Clayton E Friedman, Meredith Roberts, Brandon Hadland, Rebecca J Zaunbrecher, Irwin Bernstein, Ying Zheng & Charles E Murry Human pluripotent stem cells (hPSCs) provide a valu ... mehr

VUV photochemistry of the H2O[three dots, centered]CO complex in noble-gas matrices: formation of the OH[three dots, centered]CO complex and the HOCO radical

Vacuum ultraviolet (VUV, 130–170 nm) photochemistry of the H2O⋯CO complex is studied by matrix-isolation infrared spectroscopy. The H2O⋯CO complexes in Ne, Ar, Kr, and Xe matrices are generated by ultraviolet (UV, 193 and 250 nm) photolysis of formic acid (HCOOH). VUV photolysis of the H2O⋯ ... mehr

Hierarchical self-assembly of fluorescence emission-enhanced organogelator and its multiple stimuli-responsive behaviors

A discrete hexagonal metallacycle 1 decorated with tetraphenylethylene, amide groups and long hydrophobicalkyl chains was constructed via [3+3] coordination-driven self-assembly, from which the fluorescence emission-enhanced organogelator with multiple stimuli-responsiveness was successfull ... mehr

Synthesis and full characterization of an iridium B–H activation intermediate of the monocarba-closo-dodecaborate anion

The preparation and full characterization of an iridium complex of the monocarba-closo-dodecaborate anion is reported. It was prepared by B–H bond activation using a tosyl amide directing group. Analysis by spectroscopic methods and X-ray crystallography revealed the presence a direct B–Ir ... mehr

Probing helical transitions in a DNA duplex

The conformational change from B-DNA to Z-DNA requires inversion of helix-handedness, making it one of the most complex structural transitions in biology. Multiple degrees of freedom are intricately coupled during this transition, and formulating an appropriate reaction coordinate that capt ... mehr

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Steering air bubbles with an add-on vacuum layer for biopolymer membranes biofabrication in PDMS microfluidics

Membrane functionality is crucial in microfluidics for realizing operations such as filtration, separation, concentration, signaling among cells and gradient generation. Currently, common methods often sandwich commercially available membranes in multi-layer devices, or use photopolymerizat ... mehr

The effect of common anticoagulants in detection and quantification of malaria parasitemia in human red blood cells by ATR-FTIR spectroscopy

Attenuated Total Reflectance Infrared Spectroscopy (ATR-FTIR) has the potential to become a new diagnostic tool for malaria and other diseases. For point-of-care testing, the use of ATR-FTIR in malaria diagnosis enables the analysis of blood in the aqueous state, which represents an enormou ... mehr

Ligand density quantification on colloidal inorganic nanoparticles

Colloidal inorganic nanoparticles are being used in an increasingly large number of applications ranging from biological imaging to television displays. In all cases, nanoparticle surface chemistry can significantly impact particle physical properties, processing, and performance. The first ... mehr

Novel approach for quantitative LIBS fluorine analysis using CaF emission in calcium-free samples.

The determination of fluorine in solid samples using Laser Induced Breakdown Spectroscopy (LIBS) is a challenging task due to the low excitation efficiency of this element. Recently, the use of molecular CaF bands was demonstrated to improve the analytical capabilities of LIBS fluorine dete ... mehr

Microanalysis of arsenic in solid samples by laser ablation-atomic fluorescence spectrometry

A spot mode-LA-AFS method has been developed for localised microanalysis of arsenic in biological tissues. The cool argon–hydrogen–air diffusion flame in the detector is able to effectively decompose LA-generated aerosol particles and atomise arsenic for fluorescence detection. After optimi ... mehr

Alle Fachpublikationen zu Analytik

VUV photochemistry of the H2O[three dots, centered]CO complex in noble-gas matrices: formation of the OH[three dots, centered]CO complex and the HOCO radical

Vacuum ultraviolet (VUV, 130–170 nm) photochemistry of the H2O⋯CO complex is studied by matrix-isolation infrared spectroscopy. The H2O⋯CO complexes in Ne, Ar, Kr, and Xe matrices are generated by ultraviolet (UV, 193 and 250 nm) photolysis of formic acid (HCOOH). VUV photolysis of the H2O⋯ ... mehr

Hierarchical self-assembly of fluorescence emission-enhanced organogelator and its multiple stimuli-responsive behaviors

A discrete hexagonal metallacycle 1 decorated with tetraphenylethylene, amide groups and long hydrophobicalkyl chains was constructed via [3+3] coordination-driven self-assembly, from which the fluorescence emission-enhanced organogelator with multiple stimuli-responsiveness was successfull ... mehr

Synthesis and full characterization of an iridium B–H activation intermediate of the monocarba-closo-dodecaborate anion

The preparation and full characterization of an iridium complex of the monocarba-closo-dodecaborate anion is reported. It was prepared by B–H bond activation using a tosyl amide directing group. Analysis by spectroscopic methods and X-ray crystallography revealed the presence a direct B–Ir ... mehr

Probing helical transitions in a DNA duplex

The conformational change from B-DNA to Z-DNA requires inversion of helix-handedness, making it one of the most complex structural transitions in biology. Multiple degrees of freedom are intricately coupled during this transition, and formulating an appropriate reaction coordinate that capt ... mehr

Scale-up of continuous biphasic liquid/liquid reactions under super-heating conditions: methodology and reactor design

Biphasic liquid/liquid reactions are commonplace, however their scale-up under super-heating conditions are not. An even more challenging effort has to be expected in case of a large scale continuous production process, which also includes the development in lab scale, the selection and des ... mehr

Alle Fachpublikationen zu Chemie

Inside the USCAP Journals

Inside the USCAP Journals Laboratory Investigation 96, 1232 (December 2016). doi:10.1038/labinvest.2016.119 mehr

CD68|[sol]|macrosialin: not just a histochemical marker

CD68/macrosialin: not just a histochemical marker Laboratory Investigation advance online publication, November 21 2016. doi:10.1038/labinvest.2016.116 Authors: Dimitry A Chistiakov, Murry C Killingsworth, Veronika A Myasoedova, Alexander N Orekhov & Yuri V Bobryshev mehr

Inside the USCAP Journals

Inside the USCAP Journals Laboratory Investigation 96, 1140 (November 2016). doi:10.1038/labinvest.2016.105 mehr

Inside the USCAP Journals

Inside the USCAP Journals Laboratory Investigation 96, 1038 (October 2016). doi:10.1038/labinvest.2016.98 mehr

Inside the USCAP Journals

Inside the USCAP Journals Laboratory Investigation 96, 934 (September 2016). doi:10.1038/labinvest.2016.92 mehr

Alle Fachpublikationen zu Labortechnik

Simulation of roll compaction process in pharmaceutical industry

Abstract Dry granulation via a roll compactor was simulated in this study based on artificial neural network methodology. Two process parameters, including roll force and screw speed, were considered as input of the simulation whereas ribbon density was considered as output. Experimental ... mehr

An Efficient and Versatile Water Filtration Vacuum Cleaner – An Experimental Approach

Abstract A simple and robust suction technique is proposed for vacuum cleaning based on an innovative water filtration method for dry, wet, and water swab modes. The technique relies on applying vacuum above the free surface of water to drive the dust‐laden airstream to be released at co ... mehr

Hazards inherent to control systems: Case studies and lessons learned

Control systems are an integral part of almost all chemical processes, regardless of size or complexity. As the demands for performance and safety increase, control systems will only proliferate. With automation comes the ability to develop more complex and interrelated processes, and to re ... mehr

Modification of Bi2WO6 composites with rGO for enhanced visible light driven NO removal

Abstract Bi2WO6‐rGO composites were synthesized through hydrothermal method. Its visible‐light‐driven photocatalytic properties were evaluated by the oxidation of nitrogen monoxide, which exhibited significantly enhancement on the photocatalytic performance comparing with Bi2WO6. Bi2WO6– ... mehr

Cover Chem. Eng. Technol. 12/2016

Abstract A double effect distillation plant. Copyright: adapted from Luigi Chiesa ©Wikimedia Commons under the CC BY 3.0 license. mehr

Alle Fachpublikationen zu Verfahrenstechnik

Abnormal pH elevation in the Chaobai River, a reclaimed water intake area

pH is a primary index responding water quality in the river. Jian River and Chaobai River are two reclaimed water inteke area which had elevated pH. Elevated pH had a marked effect on both the phytoplankton, species in water and vegetation on the shore. Understanding the main reasons causin ... mehr

Using reference materials to improve the quality of data generated by USEPA analytical methods

The quality of data generated for the analysis of environmental samples is critical to State and Federal regulatory agencies to ensure that decisions based upon the amounts of contaminants in environmental samples are truly protective of public health. The quality and validation of these me ... mehr

QSARs for Phenols and Phenolates: Oxidation Potential as a Predictor of Reaction Rate with Photochemically Produced Oxidants

Quantitative structure-activity relationships (QSARs) for prediction of the reaction rate constants of phenols and phenolates with three photochemically produced oxidants, singlet oxygen, carbonate radical, and triplet excited state sensitizers/organic matter, are developed. The predictive ... mehr

3D-QSAR predictions for bovine serum albumin-water partition coefficients of organic anions using quantum mechanically based descriptors

Ionic organic chemicals are a class of chemicals that is released in the environment in a large amount from anthropogenic sources. Among various chemical and biological processes, binding to serum albumin is particularly relevant for the toxicokinetic behavior of ionic chemicals. Several ex ... mehr

Atmospheric oxidation of halogenated aromatics: comparative analysis of reaction mechanisms and reaction kinetics

Atmospheric transport is the major route for global distribution of semi-volatile compounds such as halogenated aromatics as well as their major exposure route for humans. Their major atmospheric removal process is oxidation by hydroxyl radicals. There is a very little information on the re ... mehr

Alle Fachpublikationen zu Umwelttechnik
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